Remove no longer needed workaround to block privacy banner dismissal

Superseded by the changes in 7c1deb9
and 729e70d

Author: mokagio

WooCommerce/Classes/ViewRelated/Dashboard/Settings/Privacy/PrivacyBannerPresenter.swift

@@ -100,15 +100,3 @@ extension PrivacyBannerPresenter {
         static let retry = NSLocalizedString("Retry", comment: "Retry title on the notice action button")
     }
 }
-
-extension BottomSheetViewController {
-    /// Temporary hack to prevent the `PrivacyBannerViewController` to be dismissed.
-    /// This should be changed once https://github.com/wordpress-mobile/WordPressUI-iOS/pull/126 is merged.
-    ///
-    public override func dismiss(animated flag: Bool, completion: (() -> Void)? = nil) {
-        if children.first is PrivacyBannerViewController {
-            return
-        }
-        super.dismiss(animated: flag, completion: completion)
-    }
-}